WO2020187010A1 - 一种冷热双蓄型房间空调装置 - Google Patents

一种冷热双蓄型房间空调装置 Download PDF

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Publication number
WO2020187010A1
WO2020187010A1 PCT/CN2020/077519 CN2020077519W WO2020187010A1 WO 2020187010 A1 WO2020187010 A1 WO 2020187010A1 CN 2020077519 W CN2020077519 W CN 2020077519W WO 2020187010 A1 WO2020187010 A1 WO 2020187010A1
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WIPO (PCT)
Prior art keywords
cold
heat
container
air
energy storage
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PCT/CN2020/077519
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English (en)
French (fr)
Inventor
刘安全
张占国
刘建龙
孙飞
陆刚
郝鹏慧
Original Assignee
北京瑞特爱机电设备工程有限公司
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Priority claimed from CN201910219105.9A external-priority patent/CN109827274A/zh
Priority claimed from CN201910590040.9A external-priority patent/CN110220240A/zh
Priority claimed from CN201910784270.9A external-priority patent/CN110500683A/zh
Application filed by 北京瑞特爱机电设备工程有限公司 filed Critical 北京瑞特爱机电设备工程有限公司
Priority to JP2021512996A priority Critical patent/JP7251840B2/ja
Publication of WO2020187010A1 publication Critical patent/WO2020187010A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater

Definitions

  • the invention relates to the technical field of heating, air conditioning, and energy storage equipment, in particular to a cold and heat double storage type room air conditioner.
  • the user in winter, can turn on the heating function of the cold and heat source device and use the coil heat exchanger of the indoor energy storage air conditioner to transfer heat to the container , And can raise the water temperature in the container to a higher level (for example, about 65°C, depending on the capacity of the cold and heat source device), while storing heat, the energy storage medium transfers heat to the wall of the air duct. And actively release heat from the air duct to the room.
  • the entire device works during the low power period.
  • the present invention can be further configured to include a plurality of air ducts passing through the inner shell and the outer shell.
  • the inner shell and the outer shell are fixedly connected with the air duct at the intersecting position, so that an air insulation layer is formed between the inner shell and the outer shell.
  • the user or staff activates the fan through the integrated control panel to draw air into the air duct, and the air entering the air duct exchanges heat with the outer wall of the inner casing, and then the air duct
  • the top is sent into the room for heating or cooling;
  • the container structure in this embodiment realizes the release of heat or cold through the air duct formed between the inner shell and the outer shell ,
  • the overall structure is simplified, and the production cost is reduced.
  • the container can be insulated and the container's independent heat release can be reduced.
  • the present invention can be further configured as: a fan is installed under the air duct.
  • the setting of the fan is used to increase the flow speed of the airflow, thereby improving the efficiency of heating and cooling.
  • the air supply opening of the fan deviates from the air inlet of the air duct.
  • the present invention can be further configured as follows: a water receiving tray is provided at the bottom of the air duct above the fan, the water receiving tray is fixed on the container, and the fan is fixed on the side of the water receiving tray away from the water.
  • the bottom of the drip tray is connected with a trap.
  • the present invention can be further configured as follows: an integrated control panel is installed on the outer wall of the outer shell, two water level sensors, a high water level and a low water level, are installed on the inner wall of the inner shell, and the water level The sensor is electrically connected to the integrated control panel.
  • the water level in the container can be monitored in real time, so as to supplement water.
  • the present invention can be further configured as: the cold and heat source device is an outdoor unit of an air conditioner.
  • the present invention can be further configured as: a water pipe communicating with the inside is provided at a lower position on one side of the container, and a ball valve is installed on the water pipe.
  • the user or staff can drain or replenish the container through the water pipe.
  • the present invention can be further configured as follows: the top of the container is provided with a water injection port for replenishing the energy storage medium inside the container, and a cover plate is installed at the water injection port.
  • the user or staff can replenish water through the water injection port; and the cover plate is used to prevent impurities such as dust from entering the container through the water injection port and pollute the water body.
  • the cover plate is provided with an air pressure balance hole.
  • the air pressure balance hole is set to communicate with the outside world to ensure that the interior of the inner shell is at a normal pressure, and to avoid the increase in the pressure inside the inner shell after the energy storage medium is heated. It also avoids damage to the inner shell due to the decrease in pressure inside the inner shell after the energy storage medium is cooled.
  • the cold and heat dual storage air conditioner in this application uses the heating and cooling functions of the cold and heat source device to transfer heat or cold to the container by the coil heat exchanger, so that the energy storage medium transfers the heat or cold To the wall of the air duct, and from the air duct to the indoor active heating or cooling, the whole set of equipment is working during the low electricity period, and the energy storage medium in the container can store more heat or cold, thus greatly Reduce the operating time of the heating or cooling system during the daytime peak power period, balance the load on the grid, and save considerable heating or cooling operating electricity costs; at the same time, using water as an energy storage medium not only meets the requirements of sustainable social development, Compared with other energy storage media, it has no performance degradation phenomenon (ie: long service life), good heat transfer performance, and appropriate cold storage and heat storage temperature (the temperature is close to the heating temperature and air conditioning temperature, and the heat utilization efficiency is high) , The advantages of low cost;
  • the setting of the fan is used to increase the flow speed of the airflow, thereby improving the efficiency of heating and cooling;
  • the setting of the self-weight valve can prevent the air circulation in the air duct and reduce the convective heat transfer, thereby helping to reduce the heat release of the container wall and avoid the risk of scalding caused by the excessive temperature of the shell;
  • the setting of the drain pan is used to collect the condensed water generated during refrigeration to prevent it from directly dripping on the ground or in the fan.
  • Figure 1 is a schematic diagram of the overall structure of a cold and hot dual storage air conditioner in embodiment 1 of the present invention
  • Figure 2 is a partial cross-sectional view showing the internal structure of the container
  • Figure 3 is a schematic diagram showing the position and structure of the water injection port, cover plate and air pressure balance hole on the top of the container;
  • Figure 4 is a front view of the energy storage air conditioner
  • Figure 5 is a schematic diagram showing the position of the deadweight valve
  • Figure 6 is a schematic diagram showing the structure of a deadweight valve
  • Figure 7 is a schematic diagram of the overall structure of the cold and hot dual storage air conditioner in Embodiment 2 of the present invention.
  • Fig. 8 is a schematic structural view showing the connection relationship between the inner shell, the outer shell and the support rod.
  • the present invention is a cold and heat double storage type room air conditioner disclosed in the present invention, including an energy storage air conditioner 1, a cold and heat source device 2 and an air duct 33, between the energy storage air conditioner 1 and the cold and heat source device 2.
  • the inlet pipe 21 of the refrigeration and heating pipeline communicates with the outlet pipe 22 of the refrigeration and heating pipeline.
  • a maintenance valve 23 is installed on the two pipelines to control the on and off of the pipeline.
  • the energy storage air conditioner 1 includes a container 3 containing an energy storage medium, and a coil heat exchanger 31 installed in the container 3 and exposed to the energy storage medium.
  • the air energy circulating in the air duct 33 and the energy storage medium in the container 3 For heat exchange, an electric heating tube 32 is provided under the coil heat exchanger 31 to further heat the energy storage medium so that the temperature of the energy storage medium can be raised to the highest heat storage possible under normal pressure.
  • the temperature (for example, around 95°C), the energy storage medium can be water, which has the advantages of low price and convenient access.
  • the container 3 can be made into a variety of different shapes to meet the needs of various installation methods; according to the overall flow direction of the air, the container 3 can have two basic structural forms, "vertical” and “horizontal", the so-called vertical
  • the structure means: the air flow direction inside the container 3 is bottom-up direction (according to some installation needs, it can also be designed in a top-down direction); the so-called horizontal structure refers to the air inside the container 3
  • the flow direction is generally horizontal (from left to right or opposite).
  • This device recommends the use of a "vertical" container 3 form, that is, the overall air flow direction is from bottom to top.
  • the cold and heat source device 2 When the cold and heat source device 2 is running the heating function, it sends a higher temperature medium to the energy storage air conditioner 1 through the cooling and heating pipeline.
  • the medium heats the storage medium through the coil heat exchanger 31, and when the cooling function is running,
  • the heating pipeline transports a low-temperature medium to the energy storage air conditioner 1, and the medium cools the energy storage medium through the coil heat exchanger 31. Since the container 3 in this device is vertical, that is, the air duct 33 is vertically arranged, therefore, Due to the "chimney effect", natural air flow is generated in the air duct 33 to realize passive release of heat or cold.
  • the container 3 adopts a double-layer structure design, which includes an inner shell 34, an outer shell 35, and an air duct 36 arranged inside the inner shell 34 and penetrating the inner shell 34 and the outer shell 35.
  • the inner shell 34 and the outer shell 35 are fixedly connected to the position where the air pipe 36 intersects.
  • the energy storage medium, the coil heat exchanger 31 and the electric heating tube 32 are all arranged inside the inner shell 34; the air tube 36 can be square, Round, oval, flower-shaped or other special-shaped structures, which are mainly used to release the cold or heat in the energy storage medium.
  • One end of the air pipe 36 is hermetically connected to the bottom of the container 3, and the other end is hermetically connected to the top of the container 3.
  • Both ends of the air pipe 36 are flush with the surface of the container 3, and the inside of the air pipe 36 forms a wind for air circulation.
  • the air pipe 36 can be set to one or more.
  • the number, diameter or cross-sectional area of the air pipe 36 is determined by the calculation of heat transfer performance.
  • the air pipe 36 is evenly arranged in the energy storage medium to facilitate uniform distribution. ⁇ Fully heat dissipation is the design goal.
  • the air flow will exchange heat with the energy storage medium outside the air duct 33 (inside the inner shell 34).
  • the cooling function is running, the air flowing through the air duct 33 will absorb the energy storage medium.
  • the heating function is operated, the air flowing through the air duct 33 will absorb the heat in the energy storage medium to increase the temperature.
  • An air insulation layer 37 is filled between the inner shell 34 and the outer shell 35 for heat insulation.
  • the temperature of the outer surface of the container 3 can be adjusted by changing the thickness of the air insulation layer 37 during the design, and achieve: When the temperature (the water temperature in the container 3 can reach up to 95°C), the outer surface of the anti-scald function also meets the requirement of anti-condensation on the outer surface during cold storage operation (the lowest temperature in the box is about 0°C).
  • the top of the container 3 (the top of the inner casing 34 and the outer casing 35) is provided with a water injection port that can replenish the energy storage medium inside the inner casing 34, in order to prevent dust and other impurities from entering the water injection port.
  • the housing 34 causes the energy storage medium to be contaminated, and a cover plate 38 matching it is provided at the water injection port.
  • the cover plate 38 is provided with an air pressure balance hole 381, which is used to communicate with the outside to ensure that the interior of the inner shell 34 is under normal pressure, and to prevent the pressure inside the inner shell 34 from increasing after the energy storage medium is heated and causing the container 3 It also avoids damage to the inner shell due to the decrease in pressure inside the inner shell after the energy storage medium is cooled.
  • a water pipe 39 communicating with the inside of the inner shell 34 is provided at a lower position on the side of the container 3, and a ball valve 391 is installed on the water pipe 39.
  • the water pipe 39 is used for draining water or an external water source for replenishment.
  • the user or staff can replenish water through the water injection port, and the water level of each injection is lower than the water injection port.
  • An integrated control panel 40 is installed on the outer wall on one side of the outer shell 35.
  • the maintenance valve 23, the electric heating pipe 32, and the cold and heat source device 2 are all connected to the integrated control panel 40, wherein the maintenance valve 23 is set as a solenoid valve .
  • Two water level sensors 41, high water level and low water level, are installed inside the inner shell 34, which are wired through the air insulation layer 37 and connected to the integrated control panel 40 for real-time monitoring of the water level in the container 3 for replenishing water .
  • a fan 42 connected to the integrated control panel 40 is provided under the air duct 33 to increase the flow speed of the airflow, thereby improving the efficiency of heating and cooling.
  • the fan 42 can be a cross-flow fan, a centrifugal fan, etc.
  • the air is introduced from the fan 42, absorbs heat or cold when passing through the air duct 33, and then is sent to the top of the air conditioner. Since this equipment will produce condensed water in the air duct 33 during the cooling operation in summer, a water receiving pan 43 is provided at the bottom of the air duct 33 above the fan 42 to collect the condensate water that may be generated.
  • the drain pan 43 is fixed on the outer bottom wall of the outer shell 35, and a trap 44 is connected to the lower surface of the drain pan 43, which is connected with the drain pipe 39 to draw the condensed water out and discharge it to the outside.
  • the cold and heat source device 2 adopts the outdoor unit of the room air conditioner
  • the cold and heat source device 2 the cooling and heating pipe inlet pipe 21, the cooling and heating pipe outlet pipe, and the coil heat exchanger 31 together form a "compression cooling (heating) )system".
  • compression cooling (heating) )system The following description assumes that the cold and heat source device 2 is an outdoor unit of a room air conditioner.
  • the coil heat exchanger 31 When operating in the heating mode, the coil heat exchanger 31 is used as the “condenser” of the system.
  • the heat of the refrigerant in the condenser is released into the energy storage medium to increase the temperature of the energy storage medium; if there is a peak-to-valley price policy , You can use the valley electricity price period to heat, and make the water temperature as high as possible during the valley electricity price period. Generally speaking, it can be raised to about 50 ⁇ 65 °C or higher.
  • stop the heating mode stop the heating mode and use The thermal energy stored in the energy storage medium is used for heating, which effectively saves electricity costs for heating.
  • the coil heat exchanger 31 When operating in the cooling mode, the coil heat exchanger 31 is used as the "evaporator" of the system.
  • the refrigerant with a lower temperature inside the evaporator absorbs the heat in the energy storage medium, reducing the temperature of the energy storage medium until the energy storage medium is all Until the end of the time period that turns into ice or valley electricity.
  • the refrigeration system can further reduce the temperature of the energy storage medium until it condenses into ice.
  • the energy storage medium in the container 3 can store more cold energy, thereby greatly reducing the operating time of the compression refrigeration system during the daytime peak power period, balancing the load on the grid, and saving considerable cooling operation electricity costs .
  • the type of the coil heat exchanger 31 in this application is a "copper tube aluminum fin type" heat exchanger, and its structure is the same as the types of evaporators and condensers that are widely used in air conditioning equipment at present, and the structure is similar.
  • the inside of the tube of the device 31 is a refrigerant running channel, and the outside of the tube is water.
  • the main purpose is to arrange the heat exchangers in the water moderately and evenly. The main goal is to ensure that most of the energy storage medium in the container 3 can turn into ice within a specified time.
  • the user can turn on the cold and heat source device 2, run the heat pump heating function, and use the coil heat exchanger 31 of the indoor energy storage air conditioner 1 to transfer heat to the container 3 and make the water temperature in the container 3 Increase to a higher level (for example, about 65°C, depending on the capacity of the cold and heat source device 2). Since the entire device has a higher energy efficiency ratio when the heat pump is running, good energy-saving effects can be achieved, and the entire device works during low power periods, so the heating operation cost can be significantly reduced. If the whole device is operated in the extreme cold season, more heat needs to be stored in the container 3 to meet the needs of the whole day.
  • the electric heating tube 32 is turned on to make the water temperature Further increase to a higher temperature (for example, around 95°C); in summer, during low electricity prices, users can turn on the outdoor unit of the heat pump air conditioner and run the refrigeration function, so that the refrigerating medium passes through the coil heat exchanger 31 of the indoor unit to the water body Cool down until the water in the container 3 drops to zero or even condenses into ice; in this way, the water in the container 3 can store more cold energy, thereby greatly reducing the operation of the refrigeration system during the daytime power peak hours Time, balance the load of the grid, and save considerable cooling operation electricity costs; when cooling the room, the user activates the fan 42 through the integrated control panel 40 to draw indoor air from the base and send it to the air duct 33 to enter The air in the air duct 33 is reduced in temperature through heat exchange with the outer wall of the container 3, and then is sent into the room through the air outlet on the hood 5 to reduce the indoor air temperature
  • the container 3 includes an inner shell 34 and an outer shell.
  • the outer shell 35 may have a double-wall structure similar to the air insulation layer 37 formed in the first embodiment.
  • a fan 42 is provided under the air duct 33, which is fixed on the feet of the air conditioner. The fan 42 is wired through the air duct 33 and connected to the integrated control panel 40 for pumping air into the air duct 33 and heating or cooling. The subsequent energy storage medium exchanges heat to realize heating or cooling of the room.
  • a room temperature sensor is installed near the air inlet position of the fan 42, which is connected to the integrated control panel 40 to detect the indoor temperature.
  • the fan 42 starts and starts air supply To enhance heat release (when heating in winter) or cooling (when cooling in summer).
  • Using the fan 42 to strengthen the heat and cooling function can facilitate the user's "behavioral energy saving" function, that is: in winter, when the user leaves the room, turn off the fan 42, the heat output of the container 3 is greatly reduced, and the personnel return to the room
  • the fan 42 is turned off to reduce the cooling capacity, and when the person returns to the room, the fan 42 is turned on to quickly cool down. .
  • a bowl-shaped drain pan 43 Above the fan 42 is a bowl-shaped drain pan 43, the edge of the drain pan 43 extends obliquely upwards, and the bottom of the inner shell 34 is completely enclosed, used for cooling the condensed water on the outer wall of the air duct 33 Collect it to prevent it from dripping directly on the ground.
  • a vertical screw 46 is integrally connected to the water tray 43.
  • the water tray 43 is threadedly connected to the bottom of the inner casing 34 through the screw 46.
  • the staff can disassemble and assemble it according to needs.
  • the fan 42 is installed in the water tray. 43 is away from the side of the screw 46, which can be removed along with the drain pan 43 for cleaning or maintenance.
  • a water trap 44 is connected to the lower surface of the drain pan 43, which can be connected with a drain pipe, and is used to draw the condensed water out and discharge it to the outside.
  • the user or staff activates the fan 42 through the integrated control panel 40 to draw air into the air duct 33, and the air entering the air duct 33 exchanges heat with the outer wall of the housing, and is then discharged by the hood 5
  • the air outlet is sent into the room for heating or cooling.
  • the cold and heat dual storage air conditioner in this embodiment realizes the release of heat or cold through the air duct 33 formed between the inner shell 34 and the outer shell 35, and it is not necessary to install the air duct 36, and the overall structure is more
  • the simplification reduces the production cost.
  • the container 3 can be kept warm, and the autonomous heat output of the container 3 is reduced.
  • the coil heat exchanger adopts a "microchannel" heat exchanger (instead of a conventional air conditioner).
  • the copper tube aluminum fin heat exchanger used is also a better implementation; in addition, the energy storage air conditioner is not connected to the cold and heat source device, and the coil heat exchanger is not installed inside it. It can form a "water storage electric heater” device, which is also a good room-level heating device suitable for cold climate areas. Therefore: all equivalent changes made according to the structure, shape, and principle of the present invention should be covered by the protection scope of the present invention.

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Abstract

一种冷热双蓄型房间空调装置，包括蓄能空调装置（1）、冷热源装置（2）以及风道（33），蓄能空调装置（1）包括容纳蓄能介质的容器（3）以及安装在容器（3）内且暴露于蓄能介质中的盘管换热器（31）和电加热管（32），盘管换热器（31）的两端均与冷热源装置（2）连接，风道（33）内流通的空气能与容器（3）内的蓄能介质进行热交换。该空调装置结构简单、安装成本低、安全可靠性高，还具有"蓄能"能力，通过在电价低谷时蓄冷/热、用电高峰时放冷/热的方式，大幅度降低电力负荷高峰时间段的用电负荷，起到平衡电网负荷、降低运行费用的作用。

Description

一种冷热双蓄型房间空调装置 技术领域
本发明涉及采暖、空调、储能设备技术领域，尤其是涉及一种冷热双蓄型房间空调装置。
背景技术
目前，国家在大力推广“清洁供热”技术，随着对环境的治理，消除雾霾要求的加大，减少或禁止采用烧煤、烧气、烧油等不可再生资源供热方式或对环境有污染的供热方式、采取清洁供暖措施是目前及今后的供暖政策，其中，采用电力取暖代替燃煤取暖是政府大力推广的技术措施。根据目前的电采暖实施情况，要实施有效的、可持续的电采暖并不容易，主要存在的问题包括：
1、集中式电采暖系统规划、设计、施工总工期时间长，且单位供热面积投资大，投资回收周期长，系统运营管理成本高；
2、现有分散式电蓄热产品表面温度高、成本高、安装不方便；
3、现有分散式电直供产品使用峰电、平电，导致运行费用高、不能用于电网负荷调节；
前述3种类型的电采暖方法都不具备夏季供冷的功能。
4、目前，使用空气源热泵成为一个主要清洁取暖方法，这种取暖设备在冬天可以实现清洁取暖，在夏天还可以供冷，但也存在运行费用仍较高、不具有电网平衡能力的问题。
在夏季，尤其是我国南方的一些城市，其空调的耗电量占到全社会总用电量的30％-50％，是电网主要负荷，且具有明显的时间性。
除空调负荷外，其它电力负荷也大多具有明显的时间性，即白天是用电负荷的高峰期，夜晚是用电负荷的低谷期，这种用电的巨大差异性给电网的平衡工作带来极大的困难，也带来社会资源的浪费(需要建造更大的电厂或电网负荷调节设备)。为缓解电网平衡的问题国家鼓励错峰用电并出台了峰谷电价政策。
中国清洁能源(如风电、光电、水电、核电)近年来持续快速发展，而这也使中国的电网负荷平衡问题更加严重，并且出现大量的清洁能源不能上网而弃用的现象，因此，设法消纳清洁能源成为能源行业的一项重要工作。
发明内容
本发明的目的是提供一种冷热双蓄型房间空调装置，其不仅可解决寒冷地区冬季清洁取暖的问题，而且还具有夏季供冷的能力；不但如此，本发明还具有“蓄能”的能力，通 过在电价低谷时蓄冷/热、用电高峰时放冷/热的方式，大幅度降低电力负荷高峰时间段的用电负荷，起到平衡电网负荷、降低运行费用的作用，最终还可起到降低清洁能源弃用的作用。
本发明的上述技术目的是通过以下技术方案得以实现的：一种冷热双蓄型房间空调装置，包括蓄能空调装置、冷热源装置以及风道，蓄能空调装置包括容纳蓄能介质的容器以及安装在容器内且暴露于蓄能介质中的盘管换热器和电加热管，盘管换热器的两端均与冷热源装置连接，风道内流通的空气能与容器内的蓄能介质进行热交换。
通过采用上述技术方案，本申请中的冷热双蓄型空调装置，在冬季，用户可以开启冷热源装置的制热功能，利用室内蓄能空调装置的盘管换热器向容器中输送热量，并可使容器内水温升高到较高水平(例如65℃左右，视冷热源装置的能力而定)，蓄热的同时，蓄能介质将热量传递至风道的壁板上，并由风道向室内主动放热，整套装置是在低谷电期间工作，因此，供暖运行费用可以显著降低；如果整套装置运行在极寒季节，则容器内需要储存更多的热量才能满足全天的热量需要，此时，在冷热源装置使容器升温到较高温度之后，电加热管开启，使水温进一步升高到更高温度(例如95℃左右)；在夏季，在电价低谷时段，用户可以开启冷热源装置的制冷功能，使制冷工质通过盘管换热器对蓄能介质进行降温，直至容器中的蓄能介质降温到零度甚至凝结成冰，蓄冷的过程中，冷量由风道向室内主动放出；通过这种方式，使容器中的蓄能介质可以储存较多的冷量，从而大幅度降低制冷系统在白天电力高峰时间段的运行时间，平衡电网的负荷，并节约可观的制冷运行电费；同时，用水作为蓄能介质，不仅满足可持续发展的要求，而且与采用其它蓄能介质相比具有不会出现性能衰减现象(寿命长)、传热性能好、蓄冷蓄热温度适当(温度与采暖温度、空调温度相接近)、成本低等一系列优点。
本发明在一较佳示例中可以进一步设置为：所述容器包括内壳体、外壳体以及设置在内壳体内部且贯通内壳体和外壳体的风管，风管的一端连接在容器的底部，另一端连接在容器的顶部，风管内部形成供空气流通的风道，蓄能介质和盘管换热器均设置在内壳体的内部。
通过采用上述技术方案，工作时，启动冷热源装置的制冷或制热功能，利用盘管换热器向容器中输送冷量或热量，使其与蓄能介质热交换，蓄能介质将冷量或热量传递至风管的壁板上，然后由风道的顶端送入室内进行供冷或供热。
本发明在一较佳示例中可以进一步设置为：包括多个贯通所述内壳体和外壳体的风管。
通过采用上述技术方案，提高输送热源或冷源的效率。
本发明在一较佳示例中可以进一步设置为：所述内壳体和外壳体与所述风管在相交的位置固接，以便内壳体和外壳体之间形成空气保温层。
通过采用上述技术方案，用于隔绝内壳体内部的热量或冷量，避免过多的热量或冷量自主释放；由于该空气保温层的存在，在供热时，外壳表面的温度较低，避免了目前“固体蓄热电暖器”外壳温度高、容易造成烫伤的风险。
本发明在一较佳示例中可以进一步设置为：所述容器包括内壳体、外壳体以及固接在两者之间的多根支撑杆，内壳体与外壳体之间形成供空气流通的风道，所述外壳体的顶部和底部均为通风的敞口，蓄能介质和盘管换热器均设置在内壳体的内部。
通过采用上述技术方案，工作时，用户或工作人员通过集成式控制面板启动风机，使其将空气吸入风道内，进入风道的空气通过与内壳体的外壁进行热交换，然后由风道的顶端送入室内进行供热或供冷；与实施例1中的容器结构相比，本实施例中的容器结构通过内壳体与外壳体之间形成的风道实现对热量或冷量的释放，不必在内壳体内部加装风管，在整体结构上更为简化，降低了生产成本，同时，在人员离开房间并且关闭风机时，还能够对容器进行保温，减少容器自主的放热量。
本发明在一较佳示例中可以进一步设置为：所述风道的下方安装有风机。
通过采用上述技术方案，风机的设置，用于提高气流的流动速度，从而提高供热和供冷的效率。
本发明在一较佳示例中可以进一步设置为：所述风机的送风口偏离风道的进风口。
通过采用上述技术方案，避免从风道内部流下的冷凝水被风吹散而难以顺利落下到接水盘内。
本发明在一较佳示例中可以进一步设置为：所述风道底部位于风机上方的位置设有接水盘，接水盘固定在容器上，风机固定在接水盘背离盛水的一侧，接水盘的底部连通有存水弯。
通过采用上述技术方案，用于收集可能产生的冷凝水并通过存水弯将其引出排放至外部，避免冷凝水落在地上或风机内。
本发明在一较佳示例中可以进一步设置为：所述外壳体的外壁上安装有集成式控制面板，所述内壳体的内壁上安装有高水位和低水位两个水位传感器，所述水位传感器与集成式控制面板电连接。
通过采用上述技术方案，能够对容器内的水位进行实时监测，以便进行补水。
本发明在一较佳示例中可以进一步设置为：所述容器的顶部设有风帽，风帽的四周开设有通风口。
通过采用上述技术方案，主要用于对气流进行分配。
本发明在一较佳示例中可以进一步设置为：所述冷热源装置为空调器的室外机。
本发明在一较佳示例中可以进一步设置为：所述容器一侧并靠下的位置设有与内部连通的水管，所述水管上安装有球阀。
通过采用上述技术方案，用户或工作人员可通过水管对容器进行排水或补水。
本发明在一较佳示例中可以进一步设置为：所述容器顶部开设有向容器内部补充蓄能介质的注水口，注水口处安装有盖板。
通过采用上述技术方案，用户或工作人员可通过注水口进行补水；而盖板的设置，用于避免灰尘等杂质由注水口处进入容器，使水体被污染。
本发明在一较佳示例中可以进一步设置为：所述盖板上开设有气压平衡孔。
通过采用上述技术方案，气压平衡孔的设置，用于与外界连通，保证内壳体内部为常压状态，避免蓄能介质被加热后，内壳体内部的压强增大而对内壳体造成损坏，也避免蓄能介质降温后，内壳体内部的压强降低而对内壳体造成损坏。
综上所述，本发明的有益技术效果为：
1、本申请中的冷热双蓄型空调装置通过冷热源装置的制热和制冷功能，利用盘管换热器向容器中输送热量或冷量，使蓄能介质将热量或冷量传递至风道的壁板上，并由风道向室内主动供热或供冷，整套装置是在低谷电期间工作，利用容器中的蓄能介质可以储存较多的热量或冷量，从而大幅度降低制热或制冷系统在白天电力高峰时间段的运行时间，平衡电网的负荷，并节约可观的制热或制冷的运行电费；同时，用水作为蓄能介质，不仅满足社会可持续发展的要求，而且与采用其它蓄能介质相比具有不会出现性能衰减现象(即：使用寿命长)、传热性能好、蓄冷蓄热温度适当(温度与采暖温度、空调温度相接近，热能利用效率高)、成本低的优点；
2、风机的设置，用于提高气流的流动速度，从而提高供热和供冷的效率；
3、自重式阀门的设置，能够阻止风道内空气的流通，减小对流传热，从而有利于降低容器壁板的放热量并避免壳体外部温度过高可能造成烫伤的风险；
4、接水盘的设置，用于对制冷时产生凝结水进行收集，避免其直接滴落在地面上或风机里。
附图说明
图1是本发明实施例1中冷热双蓄型空调装置的整体结构示意图；
图2是体现容器内部结构的局部剖视图；
图3是体现容器顶部注水口、盖板和气压平衡孔位置及结构的示意图；
图4是蓄能空调装置的正视图；
图5是体现自重式阀门位置的结构示意图；
图6是体现自重式阀门结构的示意图；
图7是本发明实施例2中冷热双蓄型空调装置的整体结构示意图；
图8是体现内壳体、外壳体以及支撑杆之间连接关系的结构示意图。
附图标记，1、蓄能空调装置；2、冷热源装置；21、制冷制热管路进入管；22、制冷制热管路流出管；23、维护阀；3、容器；31、盘管换热器；32、电加热管；33、风道；34、内壳体；35、外壳体；36、风管；37、空气保温层；38、盖板；381、气压平衡孔；39、水管；391、球阀；40、集成式控制面板；41、水位传感器；42、风机；43、接水盘；44、存水弯；45、支撑杆；46、螺杆；5、风帽；6、自重式阀门；61、立板；62、固定轴；63、风板。
具体实施方式
以下结合附图对本发明作进一步详细说明。
实施例1：
参照图1，为本发明公开的一种冷热双蓄型房间空调装置，包括蓄能空调装置1、冷热源装置2以及风道33，蓄能空调装置1和冷热源装置2之间通过制冷制热管路进入管21和制冷制热管路流出管22连通，在这两条管路上分别安装有维护阀23，以便控制管路的通断。
蓄能空调装置1包括容纳蓄能介质的容器3以及安装在容器3内且暴露于蓄能介质中的盘管换热器31，风道33内流通的空气能与容器3内的蓄能介质进行热交换，盘管换热器31的下方设有电加热管32，用于对蓄能介质进行进一步的加热，以便蓄能介质的温度能够升高到常压状态下可能达到的最高蓄热温度(例如95℃左右)，蓄能介质可以为水，其具有价格低廉、方便获取的优点。
容器3可以做成多种不同的形状，以适应各种安装方式的需要；根据空气的总体流动方向，该容器3可以有“立式”和“卧式”两种基本结构形式，所谓立式结构是指：空气在容器3内部的流动方向为自下而上的方向(根据某些安装的需要，也可以设计成自上而下的方向)；所谓卧式结构是指空气在容器3内部的流动方向总体上是水平方向流动(从左到右或相反)。本装置中推荐采用“立式”容器3形式，即空气的总体流动方向为自下而上流 动。
冷热源装置2在运行采暖功能时，通过制冷制热管路向蓄能空调装置1输送温度较高的介质，介质通过盘管换热器31加热蓄能介质，而在运行制冷功能时，通过制冷制热管路向蓄能空调装置1输送温度较低的介质，介质通过盘管换热器31冷却蓄能介质，由于本装置中的容器3为立式，即风道33为竖直设置，因此，风道33内会由于“烟囱效应”产生自然的空气流动，实现热量或冷量的被动释放。
参照图2，更具体的为，容器3采用双层结构设计，其包括内壳体34、外壳体35以及设置在内壳体34内部且贯通内壳体34和外壳体35的风管36，内壳体34和外壳体35与风管36相交的位置固定连接，蓄能介质、盘管换热器31和电加热管32均设置在内壳体34的内部；风管36可以是方形、圆形、椭圆形、花形或其它异形结构，其主要用于将蓄能介质中的冷量或热量释放出来。风管36的一端密封式连接在容器3的底部，另一端密封式连接在容器3的顶部，风管36的两端均与容器3的表面齐平，风管36内部形成供空气流通的风道33，根据需要，风管36可设置为一根或多根，风管36的数量、直径或截面积由传热性能计算确定，风管36在蓄能介质中均匀布局，以利于均匀地、充分地放热为设计目标。
当空气流过风道33时，气流会与风道33外部(内壳体34内部)的蓄能介质进行热交换，在运行供冷功能时，流经风道33的空气会吸收蓄能介质中的冷量而降温，而在运行供热功能时，流经风道33的空气会吸收蓄能介质中的热量而升温。
内壳体34和外壳体35之间填充有空气保温层37，用于隔热，设计时可通过改变空气保温层37的厚度来调节容器3外表面的温度，并实现：既满足蓄热运行时(容器3内水温最高可达95℃左右)外表面防烫伤功能的要求、也满足蓄冷运行时(箱内最低温度为0℃左右)外表面防凝露的要求。
参照图1和图3，容器3顶部(内壳体34和外壳体35的顶部)开设有能够向内壳体34内部补充蓄能介质的注水口，为避免灰尘等杂质由注水口处进入内壳体34而使蓄能介质被污染，在注水口处设置与之相匹配的盖板38。盖板38上开设有气压平衡孔381，用于与外界连通，保证内壳体34内部为常压状态，避免蓄能介质被加热后，内壳体34内部的压强增大而对容器3造成损坏，也避免蓄能介质降温后，内壳体内部的压强降低而对内壳体造成损坏。由于容器3为常压运行，因此对容器3的结构强度要求较低，材料消耗较少，有利于降低成本。容器3一侧并靠下的位置设有与内壳体34内部连通的水管39，水管39上安装有球阀391，通常情况下通过水管39进行排水或外接水源进行补水，当容器3距离水源较远不便接管时，用户或工作人员可通过注水口进行补水，每次注水的水位均低于注水口。
外壳体35一侧的外壁上安装有集成式控制面板40，上述的维护阀23、电加热管32、冷热源装置2均与集成式控制面板40相连接，其中维护阀23设置为电磁阀。内壳体34内部安装有高水位和低水位两个水位传感器41，其通过空气保温层37布线并且与集成式控制面板40相连接，用于对容器3内的水位进行实时监测，以便进行补水。
参照图2，在风道33的下方设置有与集成式控制面板40相连接的风机42，用于提高气流的流动速度，从而提高供热和供冷的效率。风机42可选贯流式风机、离心式风机等类型，空气由风机42处引入，经过风道33时吸收热量或冷量，而后送至空调装置的顶部。由于本设备在夏季制冷运行时，会在风道33中产生冷凝水，为此，在风道33底部位于风机42上方的位置设置接水盘43，用于收集可能产生的冷凝水。接水盘43固定在外壳体35的外底壁上，在接水盘43的下表面连接有存水弯44，其与排水管39连接，以便将冷凝水引出并排放至外部。
风机42安装在接水盘43背离盛水的一侧，其送风口偏离风道33的进风口，使得风机42的送风出口与风道33内的冷凝水滴落路径错开，避免从风道33内部流下的冷凝水被风吹散而难以顺利落下到接水盘43内，风机42送风周边的高度要高于接水盘43的底盘，以防止接水盘43中的水从风机42送风口流出。
参照图4，在容器3的顶部设有风帽5，其主要作用是对气流进行分配。风帽5四周的侧板上开设有多个通风口，根据送风方向的需要以及美观的需要布局即可。通过在顶部安装风帽5，还可以将位于风管36顶部的风管36出风口遮盖掉，以提升美观性。风帽5的顶部一般为平面形状，当然也可以为其它形状。如果制作成平面形状，就方便于用户在顶部放置家庭物件，例如可以在顶部放一个水盘，在其中盛水，就可以实现冬季采暖运行时的“加湿“功能，实现房间级恒温恒湿的功能并节省购买加湿器的费用；盛水水盘中还可以种植水生植物。从这个意义上讲，可以提升空调装置的空间利用率。
参照图5和图6，在风帽5的出风口处设置在风力作用下自动打开或关闭的自重式阀门6。自重式阀门6包括一对相互平行且竖直设置的立板61、等距固接在两立板61之间的多根固定轴62、以及转动连接在每根固定轴62上且与固定轴62等长度设置的风板63，风板63由上至下依次搭接，风板63呈弧形，其朝风帽5的外侧凸设，通常情况下，自重式阀门6呈自然下垂状态并将出风口关闭。
参照图4和图5，工作时，风板63受风力的作用朝外打开，气流从相邻风板63之间的空隙进入房间实现供暖或制冷，风板63呈弧形的设置，有利于在风力较小的情况下打开；风机42停止运行时，风板63受自身重力的作用自动下垂将出风口关闭，阻止风道33 内空气的流通，减小对流传热即减少容器3中热量或冷量的释放，避免可能出现的容器3向房间过量放热会制冷的现象，因此有利于装置的节能运行。
参照图1，上述的冷热源装置2可以是不同类型的冷热源装置2，输送热量或冷量的介质可以是压缩式制冷系统的“制冷剂”，也可以是空气源热泵冷热水机组所提供的水(冷水或热水)，也还可以是其它冷热源设备。在本申请的技术方案中，推荐采用房间空调器的室外机作为冷热源装置2，此时，制冷制热管路进入管21即为与其对应的制冷剂气体管，制冷热管路流出管即为与其对应的制冷剂液体管。当冷热源装置2采用房间空调器的室外机时，冷热源装置2、制冷制热管路进入管21、制冷热管路流出管、盘管换热器31共同组成“压缩式制冷(制热)系统”。以下描述，均假设冷热源装置2为房间空调器的室外机。
盘管换热器31的两端分别通过制冷制热管路进入管21和制冷制热管路流出管22与冷热源装置2连通，使得盘管换热器31与冷热源装置2一同形成“压缩式制冷或制热”的系统，当运行制冷模式时，该换热器作为制冷系统的蒸发器，当运行制热模式时，该换热器作为制冷系统的冷凝器；在运行制冷模式后，当水温已经降低到0℃时，如果继续运行制冷模式，则蓄能介质会变成冰。由于冰里可以储存较大的“相变潜热”，所以，可以使用较小体积的蓄能介质来储存较大容量的冷量，从而有效缩小蓄冷蓄热空调装置的体积。
运行制热模式时，盘管换热器31作为系统的“冷凝器”使用，冷凝器内制冷剂的热量释放到蓄能介质中，使蓄能介质的温度升高；如果有峰谷电价政策，就可以利用谷电价时段制热，在谷电价时段使水温尽量升高，一般来讲，可以升高到50～65℃左右或更高，在电价高峰时段时，停止运行制热模式，利用储存在蓄能介质中的热能来供热，这就有效节省了供热的电费。
运行制冷模式时，盘管换热器31作为系统的“蒸发器”使用，蒸发器内部温度较低的制冷剂吸收蓄能介质中的热量，使蓄能介质的温度降低，直到蓄能介质全部变成冰或谷电时间段结束为止。
在电力低谷时间段或低电价时间段，制冷系统可以使蓄能介质的温度进一步降低，直到将蓄能介质凝结成冰。通过这种方式，容器3中的蓄能介质可以储存较多的冷量，从而大幅度降低压缩式制冷系统在白天电力高峰时间段的运行时间，平衡电网的负荷，并节约可观的制冷运行电费。
本申请中盘管换热器31的类型为“铜管铝翅片式”换热器，其结构与目前空调设备中大量使用的蒸发器、冷凝器的类型相同，结构相似，盘管换热器31的管内为制冷剂运行通道，管外为水。具体实施时，主要是使换热器在水中适度均匀布置即可，主要目标是要保 证容器3中的大部份蓄能介质能够在规定的时间内变成冰。
工作原理：在冬季，用户可以开启冷热源装置2、运行热泵制热功能，利用室内蓄能空调装置1的盘管换热器31向容器3中输送热量，并可使容器3内水温升高到较高水平(例如65℃左右，视冷热源装置2的能力而定)。由于热泵运行时，整套装置具有较高的能效比，所以，可以实现良好的节能效果，并且整套装置是在低谷电期间工作，因此，供暖运行费用可以显著降低。如果整套装置运行在极寒季节，则容器3内需要储存更多的热量才能满足全天的热量需要，此时，在热泵使容器3升温到较高温度之后，电加热管32开启，使水温进一步升高到更高温度(例如95℃左右)；在夏季，在电价低谷时段，用户可以开启热泵空调室外机、运行制冷功能，使制冷工质通过室内装置的盘管换热器31对水体进行降温，直至容器3中的水体降温到零度甚至凝结成冰；通过这种方式，使容器3中的水体可以储存较多的冷量，从而大幅度降低制冷系统在白天电力高峰时间段的运行时间，平衡电网的负荷，并节约可观的制冷运行电费；对室内进行降温时，用户通过集成式控制面板40启动风机42，使其将室内空气从底座处吸入并送至风道33内，进入风道33的空气通过与容器3外壁进行热交换温度降低，然后由风帽5上的出风口送入室内使室内空气温度降低。
实施例2：
参照图7和图8，为本发明公开的一种冷热双蓄型房间空调装置，与实施例1的不同之处在于容器3的结构设计，具体为：容器3包括内壳体34、外壳体35以及固接在两者之间的多根支撑杆45，内壳体34与外壳体35之间形成供空气流通的风道33，外壳体35的顶部和底部均为通风的敞口，外壳体35可具有类似于实施例1中形成空气保温层37的双层壁结构。风道33的下方设有风机42，其固定在空调装置的支脚上，风机42通过风道33布线并且与集成式控制面板40相连接，用于将风抽送至风道33内与升温或降温后的蓄能介质进行热交换，从而实现对室内进行供暖或制冷。
在风机42附近的进风位置安装有室温传感器，其与集成式控制面板40相连接，用于检测室内的温度，当室内温度低于或高于设定温度时，风机42启动并开始送风以强化放热(冬季供暖时)或放冷(夏季供冷时)。利用风机42强化放热放冷功能，可方便实现用户的“行为节能”功能，即：在冬季，用户离开房间时，关闭风机42，则容器3的放热量大幅度降低，而人员回到房间时，风机42开启，可快速升温，快速满足温度舒适性要求；在夏季，与冬季相似，人员离开房间时，关闭风机42，降低放冷量，人员回到房间时，开启风机42，快速降温。
风机42的上方设有呈碗状的接水盘43，接水盘43的边沿斜向上延伸，并且将内壳 体34的底部完全兜住，用于对制冷时风道33外壁上的凝结水进行收集，避免其直接滴落在地面上。接水盘43内一体连接有竖直的螺杆46，接水盘43通过螺杆46螺纹连接在内壳体34的底部，根据需要，工作人员可对其进行拆装，风机42安装在接水盘43远离螺杆46的一侧，其可随接水盘43一同被拆下，以便清洗或维修。在接水盘43的下表面连接有存水弯44，可与排水管路连接，用于将冷凝水引出并排放至外部。
工作时，用户或工作人员通过集成式控制面板40启动风机42，使其将空气吸入风道33内，进入风道33的空气通过与壳体的外壁进行热交换，然后由风帽5上的出风口送入室内进行供热或供冷。
本实施例中的冷热双蓄型空调装置通过内壳体34与外壳体35之间形成的风道33实现对热量或冷量的释放，不必加装风管36，在整体结构上更为简化，降低了生产成本，同时，在人员离开房间并且关闭风机42时，还能够对容器3进行保温，减少容器3自主的放热量。
本具体实施方式的实施例均为本发明的较佳实施例，并非依此限制本发明的保护范围，例如：所述盘管换热器采用“微通道”换热器(而不是常规空调机所采用的铜管铝翅片式换热器)也是一种较好的实施方案；另外，所述蓄能空调装置不与冷热源装置相连接，其内部也不安装盘管换热器，则可形成“水蓄热式电暖器”装置，也是一种良好的适合于气候寒冷地区的房间级采暖装置。故：凡依本发明的结构、形状、原理所做的等效变化，均应涵盖于本发明的保护范围之内。

Claims (14)

  1. 一种冷热双蓄型房间空调装置，其特征在于：包括蓄能空调装置(1)、冷热源装置(2)以及风道(33)，蓄能空调装置(1)包括容纳蓄能介质的容器(3)以及安装在容器(3)内且暴露于蓄能介质中的盘管换热器(31)和电加热管(32)，盘管换热器(31)的两端均与冷热源装置(2)连接，风道(33)内流通的空气能与容器内的蓄能介质进行热交换。
  2. 根据权利要求1所述的一种冷热双蓄型房间空调装置，其特征在于：所述容器(3)包括内壳体(34)、外壳体(35)以及设置在内壳体(34)内部且贯通内壳体(34)和外壳体(35)的风管(36)，风管(36)的一端连接于容器(3)的底部，另一端连接于容器(3)的顶部，风管(36)内部形成供空气流通的风道(33)，蓄能介质和盘管换热器(31)均设置在内壳体(34)的内部。
  3. 根据权利要求2所述的一种冷热双蓄型房间空调装置，其特征在于：包括多个贯通所述内壳体(34)和外壳体(35)的风管。
  4. 根据权利要求2所述的一种冷热双蓄型房间空调装置，其特征在于：所述内壳体(34)和外壳体(35)与所述风管(36)在相交的位置固接，以便内壳体(34)和外壳体(35)之间形成空气保温层(37)。
  5. 根据权利要求1所述的一种冷热双蓄型空调装置，其特征在于：所述容器(3)包括内壳体(34)、外壳体(35)以及固接在两者之间的多根支撑杆(45)，内壳体(34)与外壳体(35)之间形成供空气流通的风道(33)，所述外壳体(35)的顶部和底部均为通风的敞口，蓄能介质和盘管换热器(31)均设置在内壳体(34)的内部。
  6. 根据权利要求1或2或5所述的一种冷热双蓄型房间空调装置，其特征在于：所述风道(33)的下方安装有风机(42)。
  7. 根据权利要求6述的一种冷热双蓄型房间空调装置，其特征在于：所述风机(42)的送风口偏离风道(33)的进风口。
  8. 根据权利要求6所述的一种冷热双蓄型房间空调装置，其特征在于：所述风道(33)底部位于风机(42)上方的位置设有接水盘(43)，接水盘(43)固定在容器(3)上，风机(42)固定在接水盘(43)背离盛水的一侧，接水盘(43)的底部连通有存水弯(44)。
  9. 根据权利要求2或5所述的一种冷热双蓄型房间空调装置，其特征在于：所述外壳体(35)的外壁上安装有集成式控制面板(40)，所述内壳体(34)的内壁上安装有高水位和低水位两个水位传感器(41)，所述水位传感器(41)与集成式控制面板(40)电连接。
  10. 根据权利要求1所述的一种冷热双蓄型房间空调装置，其特征在于：所述容器(3)的顶部设有风帽(5)，风帽(5)的四周开设有通风口。
  11. 根据权利要求1所述的一种冷热双蓄型房间空调装置，其特征在于：所述冷热源装置(2) 为空调器的室外机。
  12. 根据权利要求1所述的一种冷热双蓄型房间空调装置，其特征在于：所述容器(3)一侧并靠下的位置设有与内部连通的水管(39)，所述水管(39)上安装有球阀(391)。
  13. 根据权利要求1所述的一种冷热双蓄型房间空调装置，其特征在于：所述容器(3)顶部开设有向容器(3)内部补充蓄能介质的注水口，注水口处安装有盖板(38)。
  14. 根据权利要求13所述的一种冷热双蓄型房间空调装置，其特征在于：所述盖板(38)上开设有气压平衡孔(381)。
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CN114251721A (zh) * 2021-12-09 2022-03-29 珠海格力电器股份有限公司 一种节能防冻风机盘管系统、控制方法和空调
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